UNDATED-AP- A U.S. official focusing on arms control has provided what he called new, declassified details of a Chinese underground nuclear test nearly six years ago.
Christopher Yeaw, assistant secretary of state for the Bureau of Arms Control and Nonproliferation, also urged countries to press China and Russia to do more on nuclear disarmament.
He spoke Monday (Feb. 23, 2026) to the U.N.-backed Conference on Disarmament in Geneva after the last nuclear arms pact between the U.S. and Russia expired this month. The Trump administration has argued for China to be a part of any new treaty.
Yeaw says Beijing has “massively expanded” its nuclear arsenal and pointed to an explosion detected at an underground site in western China on June 22, 2020.
China’s ambassador to the conference, Jian Shen, says Beijing “resolutely rejects the unfounded accusations” and calls it “unfair, unreasonable and unfeasible” to demand China be part of three-way nuclear talks.
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